Perhaps you should try some spelling variations:
"hoc trong thoi slippers" » "hoc trong thi slippers", "hoc trong tho slippers", "hoc trong trot slippers", "hoc thuong thoi slippers", "hoc tieng thoi slippers", "dot trong thoi slippers", "hoc trong thoi slippery", "hoc trong thoi grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc trong thoi slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( hoc trong thoi slippers ) or ( dung java java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc trong thoi slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.